[Last Modified: ]

December 1999
Answer to Case 26
This was a case of babesiosis caused by Babesia sp. Diagnostic features observed included pleomorphic appearance of the rings (Figures A and B) and a tetrad (Figure C). In order to make an accurate species identification, methods such as PCR and/or serology should be considered. This case was confirmed positive for B. microti by using both PCR and serology.

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